Waking to find a stranger in your room is enough to scare anyone, but this user tells when she woke up to a maintenance man standing at the foot of her bed.
Visiting Spain, this user says she stayed in a hotel in the Catalonian mountains. While asleep, she woke up to feel someone tickling her ankles and heard them giggle.
We sometimes get creeped out when a pet looks wide-eyed at a random wall and starts barking or hissing at it. This user experienced that but not with one pet, but with four.